Articles | Volume 13, issue 5
https://doi.org/10.5194/bg-13-1367-2016
https://doi.org/10.5194/bg-13-1367-2016
Research article
 | 
04 Mar 2016
Research article |  | 04 Mar 2016

Benthic phosphorus cycling in the Peruvian oxygen minimum zone

Ulrike Lomnitz, Stefan Sommer, Andrew W. Dale, Carolin R. Löscher, Anna Noffke, Klaus Wallmann, and Christian Hensen

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Cited articles

Anderson, L. D., Delaney, M. L., and Faul, K. L.: Carbon to phosphorus ratios in sediments: Implications for nutrient cycling, Global Biogeochem. Cy., 15, 65–79, 2001.
Arning, E. T., Birgel, D., Schulz-Vogt, H. N., Holmkvist, L., Jørgensen, B. B., Larson, A., and Peckmann, J.: Lipid Biomarker Patterns of Phosphogenic Sediments from Upwelling Regions, Geomicrobiol. J., 25, 69–82, 2008.
Arning, E. T., Birgel, D., Brunner, B., and Peckmann, J.: Bacterial formation of phosphatic laminites off Peru, Geobiology, 7, 295–307, 2009a.
Arning, E. T., Lückge, A., Breuer, C., Gussone, N., Birgel, D., and Peckmann, J.: Genesis of phosphorite crusts off Peru, Mar. Geol., 262, 68–81, 2009b.
Asahi, T., Ichimi, K., Yamaguchi, H., and Tada, K.: Horizontal distribution of particulate matter and its characterization using phosphorus as an indicator in surface coastal water, Harima-Nada, the Seto Inland Sea, Japan, J. Oceanogr., 70, 277–287, 2014.
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Short summary
The study presents a P budget including the P input from the water column, the P burial in the sediments, as well as the P release from the sediments. We found that the P input could not maintain the P release rates. Consideration of other P sources, e.g., terrigenous P and P released from the dissolution of Fe oxyhydroxides, showed that none of these can account for the missing P. Thus, it is likely that abundant sulfide-oxidizing bacteria release the missing P during our measurement period.
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